# ISO 12739:1997 — Withdrawn and superseded ISO standards

For ISO 12739:1997, item title is Zinc sulfide concentrates — Determination of zinc content — Ion-exchange/EDTA titrimetric method; status code is 9599; successor is ISO 12739:2006; withdrawn / published date is 1997-11-06, recorded from its source on 2026-08-05.

- **Identifier:** ISO 12739:1997 _(verified: appears in the quote below)_
- **Item title:** Zinc sulfide concentrates — Determination of zinc content — Ion-exchange/EDTA titrimetric method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 12739:2006
- **Withdrawn / published date:** 1997-11-06 _(verified: appears in the quote below)_

## What the source says

> 2661,IS,,ISO 12739:1997,Zinc sulfide concentrates — Determination of zinc content — Ion-exchange/EDTA titrimetric method,Concentrés sulfurés de zinc — Dosage du zinc — Méthode par échange d'ions et titrage à l'EDTA,1997-11-06,1,['73.060.99'],ISO/TC 183,9599,,[37617],['en'],21,

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).